Hamiltonian ratchets with ultra-cold atoms
Quantum Physics
2017-12-29 v1 Quantum Gases
Abstract
Quantum-resonance ratchets have been realized over the last ten years for the production of directed currents of atoms. These non-dissipative systems are based on the interaction of a Bose-Einstein condensate with an optical standing wave potential to produce a current of atoms in momentum space. In this paper we provide a review of the important features of these ratchets with a particular emphasis on their optimization using more complex initial states. We also examine their stability close to resonance conditions of the kicking. Finally we discuss the way in which these ratchets may pave the way for applications in quantum (random) walks and matter-wave interferometry.
Keywords
Cite
@article{arxiv.1712.09890,
title = {Hamiltonian ratchets with ultra-cold atoms},
author = {Jiating Ni and Siamak Dadras and Wa Kun Lam and Rajendra K. Shrestha and Mark Sadgrove and Sandro Wimberger and Gil S. Summy},
journal= {arXiv preprint arXiv:1712.09890},
year = {2017}
}